.header_nav-topbar { background-color: #f5f5f5; padding: 10px 0; border-bottom: 1px solid #e0e0e0; transition: transform .3s ease; }
.header_nav-topbar.hidden { transform: translateY(-100%); }
.header_nav-topbar .header_nav-wrapper { display: flex; justify-content: space-between; align-items: center; max-width: 1600px; margin: 0 auto; padding: 0 2%; }
.header_nav-welcome { color: #333; font-size: 14px; }
.header_nav-top-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.header_nav-social { display: flex; gap: 8px; align-items: center; }
.header_nav-social-icon { width: 32px; height: 32px; border: 1px solid #aaa; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #555; text-decoration: none; transition: all .2s; font-size: 14px; }
.header_nav-social-icon:hover { background-color: #e0e0e0; color: #333; }
.header_nav-search { position: relative; }
.header_nav-search input { padding: 8px 35px 8px 12px; border: 1px solid #ccc; border-radius: 20px; font-size: 14px; width: 180px; transition: border .2s, box-shadow .2s; }
.header_nav-search input:focus { outline: none; border-color: #015bac; }
.header_nav-search button { position: absolute; right: 5px; top: 50%; margin-top: -10px; background: none; border: none; color: #777; cursor: pointer; height: 20px; line-height: 20px; font-size: 14px; transition: color .2s; }
.header_nav-search button:hover { color: #015bac; }
.header_nav-language { position: relative; cursor: pointer; }
.header_nav-language-btn { display: flex; align-items: center; gap: 8px; padding: 7px 14px 7px 12px; border: 1px solid #aaa; border-radius: 20px; background: #fff; cursor: pointer; font-size: 14px; transition: border .2s, box-shadow .2s; user-select: none; }
.header_nav-language-btn:hover { border-color: #015bac; }
.header_nav-language-btn i { font-size: 14px; color: #555; }
.header_nav-language-btn .icon-arr-down { font-size: 10px; color: #888; margin-left: 2px; }
.header_nav-language-dropdown { position: absolute; top: calc(100% + 6px); right: 0; background: #fff; border: 1px solid #e0e0e0; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.08); width: 180px; z-index: 1000; display: none; padding: 6px 0; }
.header_nav-language.active .header_nav-language-dropdown { display: block; }
.header_nav-language-item { display: flex; align-items: center; padding: 10px 16px; text-decoration: none; color: #333; border-bottom: 1px solid #f0f0f0; transition: background .15s; cursor: pointer; }
.header_nav-language-item:last-child { border-bottom: none; }
.header_nav-language-item:hover { background-color: #f8f8f8; }
.header_nav-language-item i { margin-right: 10px; width: 16px; text-align: center; }
.header_nav-language-item img { width: 18px; height: 18px; object-fit: contain; margin-right: 8px; }
.header_nav-navbar { background: #fff; padding: 12px 0; box-shadow: 0 2px 12px rgba(0,0,0,.04); position: sticky; top: 0; z-index: 100; transition: top .3s; }
.header_nav-navbar .header_nav-wrapper { display: flex; justify-content: space-between; align-items: center; max-width: 1600px; margin: 0 auto; padding: 0 2%; }
.header_nav-logo { height: 80px; display: flex; align-items: center; flex-shrink: 0; }
.header_nav-logo a { display: flex; align-items: center; height: 100%; text-decoration: none; }
.header_nav-logo img { height: 80px; width: auto; display: block; object-fit: contain; }
.header_nav-nav { display: flex; align-items: center; flex-shrink: 0; gap: 10px; }
.header_nav-nav-items { display: flex; list-style: none; gap: 6px; }
.header_nav-nav-item { position: relative; }
.header_nav-nav-link { color: #222; text-decoration: none; font-weight: 700; font-size: 18px; padding: 10px 12px; display: flex; align-items: center; gap: 4px; transition: color .2s; position: relative; }
.header_nav-nav-link:hover { color: #015bac; }
.header_nav-nav-link .nav-arrow { font-size: 10px; color: #999; transition: color .2s; }
.header_nav-nav-link:hover .nav-arrow { color: #015bac; }
.header_nav-nav-link::after { content: ''; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%); width: 0; height: 0px; background-color: #015bac; transition: width .3s; border-radius: 2px; }
.header_nav-nav-link:hover::after { width: 60%; }
.header_nav-submenu { position: absolute; top: 100%; left: 0; background-color: #015bac; font-size: 16px; border-radius: 0 0 8px 8px; width: 220px; padding: 8px 0; z-index: 999; display: none; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.header_nav-submenu::before { content: ''; position: absolute; top: -8px; left: 28px; border-left: 8px solid transparent; border-right: 8px solid transparent; border-bottom: 8px solid #015bac; }
.header_nav-nav-item:hover .header_nav-submenu { display: block; }
.header_nav-submenu-item { border-bottom: 1px solid rgba(255,255,255,.12); }
.header_nav-submenu-item:last-child { border-bottom: none; }
.header_nav-submenu-link { color: #fff; text-decoration: none; padding: 10px 20px; display: block; transition: all .2s; font-size: 14px; line-height: 1.4; }
.header_nav-submenu-link:hover { color: #fff; background-color: rgba(255,255,255,.09); padding-left: 12px; }
.header_nav-contact-btn { background-color: #015bac; color: #fff; border: none; border-radius: 30px; padding: 10px 22px; font-weight: 600; font-size: 13px; cursor: pointer; transition: all .3s; text-decoration: none; display: inline-block; margin-left: 18px; letter-spacing: .3px; white-space: nowrap; }
.header_nav-contact-btn:hover { background-color: #015bac; transform: translateY(-2px); color: #fff; }
.header_nav-mobile-toggle { display: none; font-size: 22px; background: none; border: none; color: #333; cursor: pointer; padding: 0px 6px; margin-left: 6px; }
.header_nav-mobile-icons { display: none; align-items: center; gap: 6px; }
.header_nav-mobile-icons a { color: #444; font-size: 18px; text-decoration: none; padding: 4px 5px; transition: color .2s; position: relative; }
.header_nav-mobile-icons a:hover { color: #015bac; }
.header_nav-mobile-icons .mobile-search-icon { cursor: pointer; }
.header_nav-mobile-search-dropdown { position: absolute; top: calc(100% + 8px); right: 0; padding: 12px 16px; width: 250px; z-index: 200; display: none; opacity: 0; transition: opacity .2s;  }
.header_nav-mobile-search-dropdown.show { display: block; opacity: 1; }
.header_nav-mobile-search-dropdown input { border: 1px solid #ddd; border-radius: 20px; padding: 8px 14px; font-size: 14px; width: 100%; outline: none; transition: border .2s; }
.header_nav-mobile-search-dropdown input:focus { border-color: #015bac; }
.header_nav-mobile-search-dropdown button { position: absolute; right: 28px; top: 50%; transform: translateY(-50%); background: none; border: none; color: #777; cursor: pointer; font-size: 14px; }
.header_nav-mobile-search-wrap { position: relative; display: inline-block; }
.header_nav-mobile-language { display: none; position: relative; }
.header_nav-mobile-language-btn { background: none; border: none; font-size: 20px; color: #333; cursor: pointer; padding: 4px 5px; display: flex; align-items: center; justify-content: center; }
.header_nav-mobile-language-dropdown { position: absolute; top: 110%; right: 0; background: #fff; border: 1px solid #e0e0e0; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.08); width: 180px; z-index: 1000; display: none; padding: 2px 0; text-align:center}
.header_nav-mobile-language.show .header_nav-mobile-language-dropdown { display: block; }
.header_nav-mobile-nav { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #fff; z-index: 1001; padding: 80px 24px 24px; overflow-y: auto; transform: translateX(-100%); transition: transform .3s cubic-bezier(.4,0,.2,1); }
.header_nav-mobile-nav.show { transform: translateX(0); }
.header_nav-mobile-nav-items { list-style: none; }
.header_nav-mobile-nav-item { border-bottom: 1px solid #eee; }
.header_nav-mobile-nav-link { display: flex; justify-content: space-between; align-items: center; padding: 14px 6px; color: #222; text-decoration: none; font-weight: 500; font-size: 17px; }
.header_nav-mobile-nav-link i { transition: transform .3s; font-size: 14px; color: #999; }
.header_nav-mobile-nav-link.active i { transform: rotate(180deg); color: #015bac; }
.header_nav-mobile-submenu { background-color: #f9f9f9; max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.header_nav-mobile-submenu.show { max-height: 600px; }
.header_nav-mobile-submenu-item { border-bottom: 1px solid #eee; }
.header_nav-mobile-submenu-link { display: block; padding: 12px 12px 12px 24px; color: #444; text-decoration: none; font-size: 15px; transition: background .15s; }
.header_nav-mobile-submenu-link:hover { background-color: #f0f0f0; }
.header_nav-mobile-close { position: absolute; top: 18px; right: 20px; background: none; border: none; font-size: 26px; color: #333; cursor: pointer; padding: 6px; }
@media (max-width: 1400px) { .header_nav-contact-btn { display: inline-block; } }
@media (max-width: 1200px) {
.header_nav-topbar { display: none; }
.header_nav-navbar .header_nav-wrapper { padding: 0 14px; flex-wrap: nowrap; }
.header_nav-nav { width: auto; margin-left: auto; display: flex; align-items: center; justify-content: flex-end; gap: 2px; }
.header_nav-desktop-nav { display: none; }
.header_nav-contact-btn { display: none; }
.header_nav-mobile-toggle { display: block; order: 4; }
.header_nav-mobile-language { display: block; order: 3; }
.header_nav-mobile-icons { display: flex; order: 2; }
.header_nav-navbar { padding: 10px 0; }
.header_nav-logo { height: 38px; }
.header_nav-logo img { height: 38px; }
}
@media (min-width: 769px) and (max-width: 1024px) {
.header_nav-welcome { font-size: 12px; }
.header_nav-search input { width: 150px; }
.header_nav-nav-link { font-size: 14px; padding: 8px 10px; }
}
@media (max-width: 480px) {
.header_nav-logo { height: 32px; }
.header_nav-logo img { height: 32px; }
}